結果

問題 No.442 和と積
ユーザー hiromi_ayasehiromi_ayase
提出日時 2016-11-11 22:29:21
言語 Java21
(openjdk 21)
結果
AC  
実行時間 57 ms / 1,000 ms
コード長 3,078 bytes
コンパイル時間 2,138 ms
コンパイル使用メモリ 78,008 KB
実行使用メモリ 37,264 KB
最終ジャッジ日時 2024-07-04 22:18:22
合計ジャッジ時間 4,117 ms
ジャッジサーバーID
(参考情報)
judge5 / judge1
このコードへのチャレンジ
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テストケース

テストケース表示
入力 結果 実行時間
実行使用メモリ
testcase_00 AC 53 ms
37,184 KB
testcase_01 AC 52 ms
37,184 KB
testcase_02 AC 52 ms
37,148 KB
testcase_03 AC 51 ms
36,936 KB
testcase_04 AC 53 ms
36,948 KB
testcase_05 AC 53 ms
37,036 KB
testcase_06 AC 52 ms
36,712 KB
testcase_07 AC 53 ms
37,044 KB
testcase_08 AC 53 ms
36,928 KB
testcase_09 AC 53 ms
37,020 KB
testcase_10 AC 52 ms
36,632 KB
testcase_11 AC 54 ms
36,948 KB
testcase_12 AC 53 ms
37,088 KB
testcase_13 AC 54 ms
37,060 KB
testcase_14 AC 52 ms
36,836 KB
testcase_15 AC 53 ms
37,112 KB
testcase_16 AC 54 ms
37,264 KB
testcase_17 AC 55 ms
36,612 KB
testcase_18 AC 57 ms
37,012 KB
testcase_19 AC 55 ms
36,620 KB
testcase_20 AC 56 ms
37,028 KB
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ソースコード

diff #

import java.io.IOException;
import java.io.InputStream;
import java.math.BigInteger;
import java.util.NoSuchElementException;

public class Main {
	public static void main(String[] args) {
		FastScanner sc = new FastScanner();
		long A = sc.nextLong();
		long B = sc.nextLong();

		BigInteger x = BigInteger.valueOf(A);
		BigInteger y = BigInteger.valueOf(B);

		BigInteger a = x.add(y);
		BigInteger b = x.multiply(y);

		if (a.compareTo(b) > 0) {
			BigInteger tmp = a;
			a = b;
			b = tmp;
		}
		while (a.compareTo(BigInteger.ZERO) != 0) {
			BigInteger c = a;
			a = b.mod(c);
			b = c;
		}
		System.out.println(b);
	}

}

class FastScanner {
	public static String debug = null;

	private final InputStream in = System.in;
	private int ptr = 0;
	private int buflen = 0;
	private byte[] buffer = new byte[1024];
	private boolean eos = false;

	private boolean hasNextByte() {
		if (ptr < buflen) {
			return true;
		} else {
			ptr = 0;
			try {
				if (debug != null) {
					buflen = debug.length();
					buffer = debug.getBytes();
					debug = "";
					eos = true;
				} else {
					buflen = in.read(buffer);
				}
			} catch (IOException e) {
				e.printStackTrace();
			}
			if (buflen < 0) {
				eos = true;
				return false;
			} else if (buflen == 0) {
				return false;
			}
		}
		return true;
	}

	private int readByte() {
		if (hasNextByte())
			return buffer[ptr++];
		else
			return -1;
	}

	private static boolean isPrintableChar(int c) {
		return 33 <= c && c <= 126;
	}

	private void skipUnprintable() {
		while (hasNextByte() && !isPrintableChar(buffer[ptr]))
			ptr++;
	}

	public boolean isEOS() {
		return this.eos;
	}

	public boolean hasNext() {
		skipUnprintable();
		return hasNextByte();
	}

	public String next() {
		if (!hasNext())
			throw new NoSuchElementException();
		StringBuilder sb = new StringBuilder();
		int b = readByte();
		while (isPrintableChar(b)) {
			sb.appendCodePoint(b);
			b = readByte();
		}
		return sb.toString();
	}

	public long nextLong() {
		if (!hasNext())
			throw new NoSuchElementException();
		long n = 0;
		boolean minus = false;
		int b = readByte();
		if (b == '-') {
			minus = true;
			b = readByte();
		}
		if (b < '0' || '9' < b) {
			throw new NumberFormatException();
		}
		while (true) {
			if ('0' <= b && b <= '9') {
				n *= 10;
				n += b - '0';
			} else if (b == -1 || !isPrintableChar(b)) {
				return minus ? -n : n;
			} else {
				throw new NumberFormatException();
			}
			b = readByte();
		}
	}

	public int nextInt() {
		return (int) nextLong();
	}

	public long[] nextLongList(int n) {
		return nextLongTable(1, n)[0];
	}

	public int[] nextIntList(int n) {
		return nextIntTable(1, n)[0];
	}

	public long[][] nextLongTable(int n, int m) {
		long[][] ret = new long[n][m];
		for (int i = 0; i < n; i++) {
			for (int j = 0; j < m; j++) {
				ret[i][j] = nextLong();
			}
		}
		return ret;
	}

	public int[][] nextIntTable(int n, int m) {
		int[][] ret = new int[n][m];
		for (int i = 0; i < n; i++) {
			for (int j = 0; j < m; j++) {
				ret[i][j] = nextInt();
			}
		}
		return ret;
	}
}
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